Acta Cryst. (2005). E61, o2576-o2578  [ doi:10.1107/S1600536805022245 ]

(3R)-Methyl 6-tert-butoxycarbonylamino-5-oxo-2,3-dihydro-5H-1,3-thiazolo[3,2-a]pyridine-3-carboxylate

H. Seger, S. Stempfhuber, M. Zabel, M. Marsch, A. Geyer and K. Harms

Abstract: The absolute configuration has been determined for the title compound, C₁₄H₁₈N₂O₅S, a bicyclic aromatic building block which can act as a rigid fluorescence marker in peptide backbones. In the crystal packing, the two independent molecules of the asymmetric unit are aligned in an antiparallel manner as dimers which are stabilized by antiparallel intermolecular N-HO=C hydrogen bonds. In addition, there are weak intermolecular C-HO interactions.

Online 16 July 2005

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